Computer Viruses Affecting your Computer
Malicious lines of code or software program are usually developed with an intention of causing damages or to obtain illicit access to confidential files present on a PC. The result of a virus attack will result in identity theft, as the hacker might use those credit card details and personal banking credentials. A lot of computer viruses when executed will begin multiplying itself and start to spread across multiple files, finally resulting in a halt or crash. Usually, Viruses don’t come separate, as they will come embodied with other files when you are downloading or data sharing. If you run the download or transfer virus-affected file, virus will begin to perform what it was destined to do.
Some of the commonly prevailing computer viruses are given below...
Resident Viruses
These viruses will reside on the RAM memory situated in the CPU, and will damage or corrupt all those files and programs available on that system.
Direct Action Viruses
These kinds of viruses will affect the documents in the folder or directory and replicate them again in the same place where it is located in. The execution of the virus is triggered when the system is booted every time.
Overwrite Viruses
These viruses damage or remove the data present on those documents that it infected and thus making it useless at last. The only option to do from here is to delete that useless file.
Boot Virus
The virus that infects part of a hard disk or a floppy drive referred to as boot sector, the crucial part of the disk where the operating system and boot programs will be stores. The boot sector viruses are executed when the computer is restarted. These viruses are almost extinct as people stopped using portable floppy discs.
Directory Virus
These viruses are designed to change the location of the infected file and so when you execute it, you will never know that you have run a virus.
File Infectors
These are the common PC viruses that are designed to affect executable files and application programs. Usually, these viruses accompany the free stuff you download online.
Companion Viruses
The name suggests the characteristics, as these viruses will always be accompanying other files that were already present on the PC.
FAT Virus
File Allocation Table is the full form of FAT. FAT viruses when executed will result in loss of data.
Worms
These are similar to computer viruses but are less effective and easy to remove. These replicate themselves and reduce the system performances.
Trojans or Trojan Horses/Logic Bombs
The viruses that do not replicate and are designed to perform targeted activities.
Virus Removal Options
- PC Formatting – If your computer is slow and filled with viruses, the best option is to format the operating system and reinstall it. If any of your single drive is affected, you can just format that drive alone.
- Boot-up Scanning and Virus Removal – Scan for viruses during boot up and remove them using registry cleaners.
- Antivirus Scanning and Virus Removal – Using an effective antivirus application to scan the drives and remove the viruses found.
Some of the Tips include installing Powerful Antivirus applications and Powerful monitoring application software such as WinPatrol. Free virus scan programs are also available online that supports your PC security. The operating system and antivirus software must be checked for periodic updates to keep up security terms.
Computer virus being a software program usually replicates itself to spread over a connected network causing damage to the data and PC software.
The first attack virus happens to do is hit the security system of a PC followed by destru- ctive action such as hiding the data in the drives, deleting or duplicating files creating confusion, slowdown of your PC etc. 
